<!DOCTYPE html>  
<html lang="en">  
<head>  
   <meta charset="UTF-8">  
   <meta name="viewport" content="width=device-width, initial-scale=1.0">  
   <title>风景图片跳转</title>  
   <script>  
       let currentPage = 1;  
       const pageInterval = 20 * 1000; // 20 秒
       function updatePage() {  
           const url = `https://sc.chinaz.com/tupian/fengjing.html?page=${currentPage}`;  
           document.getElementById('pageLink').href = url;  
           document.getElementById('currentPage').innerText = currentPage;
           if (currentPage < 10) {  
               currentPage++;  
           } else {  
               currentPage = 1;  
           }  
       }
       window.onload = function() {  
           setInterval(updatePage, pageInterval);  
       };  
   </script>  
</head>  
<body>  
   <h1>风景图片跳转</h1>  
   <p>当前页码：<span id="currentPage">2</span></p>  
   <p>  
       <a id="pageLink" href="https://sc.chinaz.com/tupian/fengjing.html?page=1">第二页</a>  
   </p>  
</body>  
</html>  